1920–1929
National Gallery of Art, 1700
National Gallery of Art, 1871
National Gallery of Art, 1637
National Gallery of Art, 1938
Williams, Dave H. and Reba W., 1980
National Gallery of Art, 1921
National Gallery of Art, 1868
National Gallery of Art, 1980
National Gallery of Art, 1993
National Gallery of Art, 1888
National Gallery of Art, 1456
![Letter to the Mother [right]](https://api.nga.gov/iiif/58c1a613-3c74-46c7-bfdf-949fb99ff1a2/full/843,/0/default.jpg)
![Francesco I Sforza, 1401-1466, 4th Duke of Milan 1450 [obverse]](https://api.nga.gov/iiif/f25ed8ee-67a1-4e33-b136-160f6e2484e1/full/843,/0/default.jpg)
